Re: I'd love to see a law...
Did you patch your vehicle before rolling it? Did you upgrade its safety systems? Did you amend the insurance contract before hand?
Sounds like what ever safety systems Your vehicle shipped with did their job, if you could have retrofitted newer safety systems could they have prevented the vehicle rolling?
My other half’s car has keyless entry and go, If the keys are near the front door crims could steal the car without gaining access to the house, putting the keys in a rf shielding bag or simply well away from the front door would defeat the crims, regardless If a patch is available or not, same goes for adding a steering wheel lock.
Different operating behaviour can be more effective than applying a patch especially when a patch might not be available...
Uhuhh...I don't know about you, but I don't have people remotely trying to compromise my vehicle in a mass non targeted kind of way. No one will slow any processors down because they are mining bitcoins or part of DDoS bot attack and it doesn't store any personal information about me that would be valuable, so why would they even bother if they could? Although see my later point re Tesla.
Nor do I have to worry that some oik in China will make the engine blow or the brakes fail.
My current vehicle also has keyless entry. They doors won't open unless they are within about 18" of the vehicle and it won't start unless the keys are inside the vehicle. Indeed, take them out when the engine is running and it tells you on the driver info display that they've been removed from the vehicle and the engine will be shutting down in xx seconds.
Also are you telling me that if you owned, say, a Tesla, with vulnerabilities that were detected that you'd be equally happy not to receive a patch?
Your arguments don't hold water.